Lisa Robin Kelly Death Labeled a "Mystery" by Authorities, Autopsy to Come

The actress passed away in her sleep just a few days into her latest treatment stint, but officials from the Pax Rehab House insist they never gave Kelly any drugs.

Law enforcement officials confirm that no foreign substances were found in Lisa's system and have labeled her passing a "mystery" at the moment.

There was no vomit in her airway. There was no signs of trauma anywhere in the room or around the former That 70s Show star.

Kelly's boyfriend took her to the hospital on Sunday after she registered a .34 blood-alcohol level. He then pushed for her to enter rehab the following day, despite the numerous times that such an admission had failed in the past.

Sadly, we'll never know if Kelly was in the proper mindset to finally turn her life around.